A man is found wandering a downtown street covered in blood but has no knowledge of what happened to him, so the CSIs attempt to unlock his memory. Their probe reveals the blood isn't from the man but is from three other people who belong to the same famil (more…)A man is found wandering a downtown street covered in blood but has no knowledge of what happened to him, so the CSIs attempt to unlock his memory. Their probe reveals the blood isn't from the man but is from three other people who belong to the same family and are feared to be dead.